NL182519B - DEVICE FOR PLAYING RECORDED SOUND WITH A PLAYING SPEED EQUAL TO OR DIFFERENT FROM THE RECORDING SPEED. - Google Patents

DEVICE FOR PLAYING RECORDED SOUND WITH A PLAYING SPEED EQUAL TO OR DIFFERENT FROM THE RECORDING SPEED.

Info

Publication number
NL182519B
NL182519B NL7401915A NL7401915A NL182519B NL 182519 B NL182519 B NL 182519B NL 7401915 A NL7401915 A NL 7401915A NL 7401915 A NL7401915 A NL 7401915A NL 182519 B NL182519 B NL 182519B
Authority
NL
Netherlands
Prior art keywords
playing
speed
different
recorded sound
equal
Prior art date
Application number
NL7401915A
Other languages
Dutch (nl)
Other versions
NL182519C (en
NL7401915A (en
Original Assignee
Cambridge Res & Dev Group
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US00331550A external-priority patent/US3828361A/en
Priority claimed from US00331536A external-priority patent/US3846827A/en
Priority claimed from US430911A external-priority patent/US3869708A/en
Application filed by Cambridge Res & Dev Group filed Critical Cambridge Res & Dev Group
Publication of NL7401915A publication Critical patent/NL7401915A/xx
Publication of NL182519B publication Critical patent/NL182519B/en
Application granted granted Critical
Publication of NL182519C publication Critical patent/NL182519C/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/04—Control of transmission; Equalising
    • H04B3/10—Control of transmission; Equalising by pilot signal
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/04—Time compression or expansion
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
    • H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
    • H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
    • H03K4/48—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices
    • H03K4/50—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth voltage is produced across a capacitor
    • H03K4/501—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth voltage is produced across a capacitor the starting point of the flyback period being determined by the amplitude of the voltage across the capacitor, e.g. by a comparator
    • H03K4/502—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth voltage is produced across a capacitor the starting point of the flyback period being determined by the amplitude of the voltage across the capacitor, e.g. by a comparator the capacitor being charged from a constant-current source
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K7/00—Modulating pulses with a continuously-variable modulating signal
    • H03K7/08—Duration or width modulation ; Duty cycle modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
    • H04B1/662—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using a time/frequency relationship, e.g. time compression or expansion

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Quality & Reliability (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
NL7401915A 1973-02-12 1974-02-12 DEVICE FOR PLAYING RECORDED SOUND WITH A PLAYING SPEED EQUAL TO OR DIFFERENT FROM THE RECORDING SPEED. NL182519C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US00331550A US3828361A (en) 1971-08-13 1973-02-12 Speech compressor-expander
US00331536A US3846827A (en) 1973-02-12 1973-02-12 Speech compressor-expander with signal sample zero reset
US430911A US3869708A (en) 1971-08-13 1974-01-14 Speech compressor with gap filling

Publications (3)

Publication Number Publication Date
NL7401915A NL7401915A (en) 1974-08-14
NL182519B true NL182519B (en) 1987-10-16
NL182519C NL182519C (en) 1988-03-16

Family

ID=27406803

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7401915A NL182519C (en) 1973-02-12 1974-02-12 DEVICE FOR PLAYING RECORDED SOUND WITH A PLAYING SPEED EQUAL TO OR DIFFERENT FROM THE RECORDING SPEED.

Country Status (4)

Country Link
JP (1) JPS592039B2 (en)
DE (1) DE2404282C3 (en)
GB (1) GB1462203A (en)
NL (1) NL182519C (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4207723A (en) * 1978-06-14 1980-06-17 General Atomic Company Canning and inspection system for nuclear reactor fuel and reflector elements

Also Published As

Publication number Publication date
JPS5089002A (en) 1975-07-17
NL182519C (en) 1988-03-16
NL7401915A (en) 1974-08-14
GB1462203A (en) 1977-01-19
DE2404282B2 (en) 1980-05-08
JPS592039B2 (en) 1984-01-17
DE2404282C3 (en) 1981-02-05
DE2404282A1 (en) 1974-08-15

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Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee